We published a post earlier on how to implement IFRS 16 on leases on a sustainable way. As noted there, sustainability includes that the core process provides as much data for disclosure requirements as possible. As underpinned by several comprehensive post-implementation studies, the projects were harder than expected, and the new standard considerably increased workload of annual reporting. The fact that a substantial portion of IT tools applied for lease accounting (almost half of them as per the study quoted above) further contributed to this. It might therefore be useful to have a look on these disclosure requirements now, when the preparation of the first, IFRS 16 compliant annual report preparation is knocking on our doors. We consider lessee aspects, since lessor requirements did not change significantly.